Seismic Ammo

Anyone try this? 185gr 9mm sounds cool

 

Interesting name, sonic booms. ?

 

Looks like they are saying the opposite:

Not endorsing, I just took a quick look at the website.

 

Hassf: I took a gander my self with Google after the comment. Didn’t realize one could even shoot such a heavy bullet in such a small round like 9MM.
Sure points out that even after tens of decades some one is going to try to make “improvements “ to various calibers.

 

This-

-is a little troubling to hear; makes me wonder why there is an exclusion for the H&Ks.

 

Short chambered? With that much mass it has to be somewhere and I suspect it may be impacting the lands of a chamber or a lead is cut short.

 

Not much info provided on the mfg website. You would think they’d include at least a gel-test result. Something more than a simple “we believe” statement.

A lot of people “believe” things that I don’t. In this case it’s up to them to convince me.

 

Neat.

Not neat enough, however, to justify $28.98 of my income for a box of 21 rounds.

And their case and half-case prices? Exact multiples of the cost of a single box of 21 rounds...no discount.

So, how many rounds of self defense ammo do you consider adequate to verify its reliability in your carry gun?

Multiply that by $1.38.

 

Boutique ammunition not used by any law enforcement agency and will go the way of EXTREME SHOCK!!!! Fang Face Nytrillium ammunition.

 

Really wish they'd give some more information on their website. I'm curious enough to read more about this, but not yet curious enough to spend much money on it. Not to spend more than $30 (including shipping and tax) for 21 rds.

 

OMG! I remember that stuff. I also remember thinking I wouldn't want to have to explain that picture to a jury.

 

Very much along the lines of what I was thinking....excluding the use of their ammunition line in one particular platform or manufacturer is just.....weird....it makes no sense. HKs use the same SAAMI spec 9mm ammo as all other pistols chambered in 9mm...it's not like HKs use some unusual version of the 9mm that chambers only in HKs.

 

They exclude the HKs and others because the velocity is a little low in these guns which results in sub-optimal expansion. They are working to correct that.

I tried some.

The bullet is seated long (because the bullet itself is long) and they failed the plunk test in some of my S&W M&Ps which have very short throats.

I experienced some high pressure signs. Primer flow, pierced primers, etc.

 

Interesting.....did you Chrono them?

 

No explanation of what material they're using for the bullet itself. Wonder if it is still lead or something else?

They also say stainless steel cases, would they still have the small affect of increased wear people mention when they talk of Russian steel ammo?

At over $1.25 a round I'm not inclined to find out personally.

 

5" Kart = 923 fps
4" Glock = 896 fps

 

lead core, jacketed.

Nas3 cases. https://www.shellshocktechnologies.com/

 

At $1.38 per round it’s a high priced round. I might buy a box to try out if I come across some, but I wouldn’t rush out to buy it just to try it.

The “21 round Bonus Pack” made me chuckle. Shades of “1984”...”the chocolate ration has been increased to 25 grams...”

 

Thanks!
Seismic says the cases are stainless on their site. Shell Shock, who makes the cases, says they're Nas3, a nickel alloy, which may actually be stainless. They're also 2 piece cases. I know the Army round in development is also supposed to be a 2 piece case.

Wonder what the advantage is? I can imagine case separation, but maybe that's not an issue.

 

No idea what kind of gun is a Kart. Or is that a typo?

 

Not sure that I buy such an explanation from the manufacturer. HKs, like Glocks, have polygonal rifling which seals gas behind the projectile more completely than conventional cut rifling which tends to result in higher muzzle velocities from barrels of the same length. Of the 8 HK pistols that I have in 9mm(3), .40S&W(2), and .45ACP(3), all of them produce higher velocities than pistol barrels of the same length with conventional rifling.

If polygonal bores are the culprit, then Seimic would've also issued a caution against using their ammunition in Glocks (and other pistols with polygonal rifling) since polygonal barrels seem to be the only difference between the excluded HKs and all others.

Something is just not adding up here...

 

I have several boxes of that in 40S&W in the cabinet. Going to slaughter some water filled milk jugs with it some day for fun. I got it for like $2 a box when some shop was blowing it out.

I like heavy for caliber bullets but Seismic might be taking it to the extreme. That said it would be good in a suppressed sub-gun to increase down range energy while still staying sub-sonic quiet.

 

Sorry. Kart barrel in a 1911 pistol.